synchronized (future) {
        Listener old = future.listenersField;
        if (old != update) {
          future.listenersField = update;
        }
        return old;
      }
    }

    @Override
    @Nullable Waiter gasWaiters(AbstractFutureState<?> future, Waiter update) {
      synchronized (future) {
        Waiter old = future.waitersField;
        if (old != update) {

      }
      // We could delegate to super now but it would still box too much
      if (!(object instanceof List)) {
        return false;
      }
      List<?> that = (List<?>) object;
      if (this.size() != that.size()) {
        return false;
      }
      int i = parent.start;
      // Since `that` is very likely RandomAccess we could avoid allocating this iterator...

      }
      // We could delegate to super now but it would still box too much
      if (!(object instanceof List)) {
        return false;
      }
      List<?> that = (List<?>) object;
      if (this.size() != that.size()) {
        return false;
      }
      int i = parent.start;
      // Since `that` is very likely RandomAccess we could avoid allocating this iterator...

            val markerPos = content.indexOfFirst { it.contains(markerComment) }
            require(markerPos >= 0) { "Could not locate the generated diagram in $markdownFile" }
            val endPos = content.subList(markerPos, content.size).indexOfFirst { it.contains(endDiagram) && !it.contains(startDiagram) }
            require(endPos >= 0) { "Could not locate the end of the generated diagram in $markdownFile" }
            content.subList(0, markerPos)

"}),a.formUtils.addValidator({name:"confirmation",validatorFunction:function(b,c,d,e,f){var g,h=c.valAttr("confirm")||c.attr("name")+"_confirmation",i=f.find('[name="'+h+'"]');if(!i.length)return a.formUtils.warn('Password confirmation validator: could not find an input with name "'+h+'"',!0),!1;if(g=i.val(),d.validateOnBlur&&!i[0].hasValidationCallback){i[0].hasValidationCallback=!0;var j=function(){c.validate()};i.on("keyup",j),f.one("formValidationSetup",function(){i[0].hasValidationCallback=...

   * TODO: b/315526394 - Skip the Builder entirely for the of(...) methods, since we don't need to
   * worry that we might trigger the fallback to the JDK-backed implementation? (The varargs one
   * _could_, so we could keep it as it is. Or we could convince ourselves that hash flooding is
   * unlikely in practice there, too.)
   */

  /**
   * Returns an immutable set containing the given elements, minus duplicates, in the order each was

.no-gutters{margin-right:0;margin-left:0}.no-gutters>.col,.no-gutters>[class*=col-]{padding-right:0;padding-left:0}.col,.col-1,.col-10,.col-11,.col-12,.col-2,.col-3,.col-4,.col-5,.col-6,.col-7,.col-8,.col-9,.col-auto,.col-lg,.col-lg-1,.col-lg-10,.col-lg-11,.col-lg-12,.col-lg-2,.col-lg-3,.col-lg-4,.col-lg-5,.col-lg-6,.col-lg-7,.col-lg-8,.col-lg-9,.col-lg-auto,.col-md,.col-md-1,.col-md-10,.col-md-11,.col-md-12,.col-md-2,.col-md-3,.col-md-4,.col-md-5,.col-md-6,.col-md-7,.col-md-8,.col-md-9,.col-md-...

      return unsafeDoBackward(b);
    }
  }

  /*
   * LegacyConverter violates the contract of Converter by allowing its doForward and doBackward
   * methods to accept null. We could avoid having unchecked casts in Converter.java itself if we
   * could perform a cast to LegacyConverter, but we can't because it's an internal-only class.
   *
   * TODO(cpovirk): So make it part of the open-source build, albeit package-private there?
   *

var(--bs-gutter-x) * .5);margin-top:var(--bs-gutter-y)}.col{flex:1 0 0%}.row-cols-auto>*{flex:0 0 auto;width:auto}.row-cols-1>*{flex:0 0 auto;width:100%}.row-cols-2>*{flex:0 0 auto;width:50%}.row-cols-3>*{flex:0 0 auto;width:33.3333333333%}.row-cols-4>*{flex:0 0 auto;width:25%}.row-cols-5>*{flex:0 0 auto;width:20%}.row-cols-6>*{flex:0 0 auto;width:16.6666666667%}.col-auto{flex:0 0 auto;width:auto}.col-1{flex:0 0 auto;width:8.33333333%}.col-2{flex:0 0 auto;width:16.66666667%}.col-3{flex:0 0 auto;...

            throw new FessSystemException("Could not find extractorFactory.");
        }
        Extractor extractor = extractorFactory.getExtractor(responseData.getMimeType());
        if (extractor == null) {
            extractor = ComponentUtil.getComponent("tikaExtractor");
            if (extractor == null) {
                throw new FessSystemException("Could not find tikaExtractor.");
            }
        }